Finding the Fourth Proportional to 22,548.72, 33,821.64 and 7,764.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,548.72 : 33,821.64 = 7,764.72 : x
2. Step 2: Convert to fraction form
   22,548.72/33,821.64 = 7,764.72/x
3. Step 3: Cross multiply
   22,548.72x = 33,821.64 × 7,764.72
4. Step 4: Simplify right side
   22,548.72x = 262,615,564.54
5. Step 5: Solve for x
   x = 262,615,564.54/22,548.72
6. Step 6: Final answer
   x = 11,646.58